Singapore zone
GMT+8 (GMT+8)
Chicago zone
CDT (GMT-5)
Difference
13 hours behind Singapore
Business overlap
No 9-5 overlap
Working hours overlap
Each cell is one hour in Singapore. Filled cells mark when 9 AM – 5 PM in Singapore and Chicago both apply.
0 hours per day
- Singapore
- GMT+8
- Chicago
- GMT-5
- Difference
- -13h
- Business overlap
- 0h
Hour-by-hour conversion
Each row shows the matching local time in Chicago for an hour in Singapore.
| Singapore | Chicago | Day | Window |
|---|---|---|---|
| 12:00 AM | 11:00 AM | previous day | — |
| 1:00 AM | 12:00 PM | previous day | — |
| 2:00 AM | 1:00 PM | previous day | — |
| 3:00 AM | 2:00 PM | previous day | — |
| 4:00 AM | 3:00 PM | previous day | — |
| 5:00 AM | 4:00 PM | previous day | — |
| 6:00 AM | 5:00 PM | previous day | — |
| 7:00 AM | 6:00 PM | previous day | — |
| 8:00 AM | 7:00 PM | previous day | — |
| 9:00 AM | 8:00 PM | previous day | — |
| 10:00 AM | 9:00 PM | previous day | — |
| 11:00 AM | 10:00 PM | previous day | — |
| 12:00 PM | 11:00 PM | previous day | — |
| 1:00 PM | 12:00 AM | same day | — |
| 2:00 PM | 1:00 AM | same day | — |
| 3:00 PM | 2:00 AM | same day | — |
| 4:00 PM | 3:00 AM | same day | — |
| 5:00 PM | 4:00 AM | same day | — |
| 6:00 PM | 5:00 AM | same day | — |
| 7:00 PM | 6:00 AM | same day | — |
| 8:00 PM | 7:00 AM | same day | — |
| 9:00 PM | 8:00 AM | same day | — |
| 10:00 PM | 9:00 AM | same day | — |
| 11:00 PM | 10:00 AM | same day | — |
Best meeting windows
Standard 9 AM – 5 PM hours in Singapore and Chicago do not overlap. Plan calls for early Singapore morning or late Singapore evening, and rotate the burden between sides.
Tighter overlap is achievable by having the side with later working hours start earlier, or by treating the first and last hours of each side as flexible. The bar above marks every hour where both cities sit inside a 9 AM – 5 PM window.
About converting Singapore time to Chicago time
Singapore follows the Asia/Singapore time zone (currently GMT+8, GMT+8), while Chicago follows America/Chicago (currently CDT, GMT-5). Chicago is 13 hours behind Singapore right now.
Chicago observes daylight saving time, while Singapore does not. The offset between the two cities changes by one hour at the daylight saving transitions.
Daylight saving transitions in 2026
Singapore
Does not observe daylight saving time.
Chicago
- Spring forward · Sunday, March 8, 2026
- Fall back · Sunday, November 1, 2026
Reverse this conversion
Chicago to Singapore
Open the converter
Plan a meeting between Singapore and Chicago
More conversions from Singapore
Frequently asked questions
- How many hours is Singapore from Chicago?
- Chicago is 13 hours behind Singapore right now.
- What time is 9:00 AM Singapore in Chicago?
- 9:00 AM in Singapore is 8:00 PM (previous day) in Chicago.
- What time is 5:00 PM Singapore in Chicago?
- 5:00 PM in Singapore is 4:00 AM in Chicago.
- When do Singapore and Chicago business hours overlap?
- Standard 9 AM - 5 PM working hours in Singapore and Chicago do not overlap. You will need an early or late call.
- Does daylight saving time change the difference between Singapore and Chicago?
- Chicago observes daylight saving time while Singapore does not, so the offset between them changes by one hour twice a year.
Local time page
Time in Singapore
Local time page
Time in Chicago